Welcome Goldtop,
The only black Targa I'm aware of is an 03 facelift model and has been with its owner for many years (if not from new). Nearest would be mine or CMUK's which has the blood red interior, both are 3.2 T models.
A dark coloured Targa is going to be hard to find so you last post about condition over colour is sensible and good luck.
Like youself there are many owners that also 'lurk' on the forum and rarely post. A wanted add might just invite some direct contact for you should someone belooking to part with their NSX.
Good luck
regards, Paul
Senninha
'Too many manufacturers today are obsessed with lap times and power outputs at the expense of emotion and fun' Colin Goodwin
S2 is signed by the NSX Project Leader Shigeru Uehara